Internal-combustion engines – Charge forming device – With fuel pump
Patent
1997-11-12
1999-11-09
Miller, Carl S.
Internal-combustion engines
Charge forming device
With fuel pump
123446, F02M 3704
Patent
active
059794151
ABSTRACT:
A fuel injection pump, preferably for use with relatively large diesel engines employing heavy diesel fuel, includes a pump body that defines a portion of a fuel pressurization chamber in fluid communication with a fuel outlet and a spill passage. The pump body also defines a pressure control chamber and an actuation fluid passage. A spill valve member, which has a pressure surface is exposed to fluid pressure in the pressure control chamber and is moveable between an inject position that blocks the spill passage and a spill position that opens the spill passage. An electronically controlled valve has a control valve member that is moveable between a first position in which the actuation fluid passage is open to the pressure control chamber, and a second position in which the actuation fluid passage is blocked to the pressure control chamber.
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Patents Abstracts of Japan, vol. 008, No. 220 (M-330) , Oct. 6, 1984 & JP 59 103960 A (Nissan Jidosha KK) , Jun. 15, 1984.
Ruttle Dennis M.
Sparks James D.
Caterpillar Inc.
McNeil Michael B.
Miller Carl S.
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